There is such a thing as "negative people". Folks that cost more in correcting their mistakes than in contributing to a problem. This often happens with anemic

There is such a thing as "negative people". Folks that cost more in correcting their mistakes than in contributing to a problem. This often happens with anemic partnerships. The cost of losing someone largely depends on how good and useful they were. It is so case-by-case that such a list is useless.